src/mainboard/google/parrot/chromeos.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <bootmode.h>
   4 #include <boot/coreboot_tables.h>
   5 #include <device/pci_ops.h>
   6 #include <device/device.h>
   7
   8 #include <southbridge/intel/bd82x6x/pch.h>
   9 #include <southbridge/intel/common/gpio.h>
  10 #include <types.h>
  11 #include <vendorcode/google/chromeos/chromeos.h>
  12
  13 #include "onboard.h"
  14
  15 void fill_lb_gpios(struct lb_gpios *gpios)
  16 {
  17         const pci_devfn_t dev = PCI_DEV(0, 0x1f, 0);
  18         u16 gen_pmcon_1 = pci_s_read_config32(dev, GEN_PMCON_1);
  19
  20         struct lb_gpio chromeos_gpios[] = {
  21                 /* Lid switch GPIO active high (open). */
  22                 {GPIO_LID, ACTIVE_HIGH, get_lid_switch(), "lid"},
  23
  24                 /* Power Button */
  25                 {101, ACTIVE_LOW, (gen_pmcon_1 >> 9) & 1, "power"},
  26
  27                 /* Did we load the VGA Option ROM? */
  28                 /* -1 indicates that this is a pseudo GPIO */
  29                 {-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
  30         };
  31         lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
  32 }
  33
  34 int get_lid_switch(void)
  35 {
  36         return get_gpio(GPIO_LID);
  37 }
  38
  39 int get_write_protect_state(void)
  40 {
  41         return !get_gpio(GPIO_SPI_WP);
  42 }
  43
  44 int get_recovery_mode_switch(void)
  45 {
  46         return !get_gpio(GPIO_REC_MODE);
  47 }
  48
  49 static const struct cros_gpio cros_gpios[] = {
  50         CROS_GPIO_REC_AH(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_NAME),
  51         CROS_GPIO_WP_AL(GPIO_SPI_WP, CROS_GPIO_DEVICE_NAME),
  52 };
  53 DECLARE_CROS_GPIOS(cros_gpios);
  54
  55 int get_ec_is_trusted(void)
  56 {
  57         /* Do not have a Chrome EC involved in entering recovery mode;
  58            Always return trusted. */
  59         return 1;
  60 }